Chimney.



J. D. BARBER.

GHIMNEY.

APPLICATION FILED NOV. 30, 1907.

Patented NW3, 1908.

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CHIMNEY.

Specification of Letters Patent.

Patented Nov. 3, 1908.

Application filed November 30, 1907. Serial No. Ltllaf).

To (LZ-Z column it may concern:

Be it known that I, JOHN D. BARBER, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Chimneys, and do declare that the following is a full, clear, and exact description of the invention., which will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in chimneys, and the invention consists in a chimney constructed of cement or equivalent blocks and union joints, substantially as shown and described and particularly pointed out in the claims.

in the accompanying drawings, Figure l is a perspective view of the top of a chimney built according to my invention. Fig. 2 is a vertical sectional elevation of a portion of a chimney involving` my invention and showing how a chimney can be drawn thereby. Fig. 8 is a perspective view of one of the union joints or members for connecting the outer blocks, and Fig. e is a perspective view of an outer block partially broken away at the front to show the internal construction.

rThe idea of the invention is clearly disclosed in the drawings, and the invention comprises two distinct and separate members, the block B, which is the outer' and main member, and C the union or oining member. Both these members are made of concrete molded into the desired shape and size, and all of each kind are alike and interchangeable and invertible, except the cap member D, which is designed to surmount and finish the chimney and is built accordingly.

The respective members B are made of uniform cross section of any desired thicknessl and of uniform flue space and have building or constructing inner flanges E extending in uniform depth about their midlle or center, and the flue space or passage is determined by these lianges, which to that extent narrow the passage through said blocks or members. n the present construction the said flanges have a thickness or depth equal substantially to the thickness of the blocks above and below the same, and they are of uniform distance from the edges 2 of said blocks. Said edges are flat and plain throughout as also are the surfaces of said flanges, and the union members or joints C are of a depth vertically equal to double the depth of one of said blocks from its edge 2 to the seating surface of iiange E, so that when the parts are brought together, as in Fig. 2, the outer blocks will seat equally one upon the other while they will also seat on the joints C. Furthermore, the thickness of said oints is relatively as much less than the lateral depth or thickness of said flanges as shown, or approximately so, in order that the chimney may be drawn in any direction from a perfectly perpendicular position which a given building may require, and any open space resulting from such drawing is filled with mortar. f the chimney be not drawn the blocks B and joints C are set one directly over the other' and the interstices filled with mortar.

From another point of view it may be said that each block B has a recess on each side extending inward to the flange E in which building accommodation is obtained by the use of joints or unions of relatively less size all around than said recesses and thus both enabling the chimney to be drawn and providing each block with an extension into the next block above of such depth as will firmly anchor the same in the chimney and lock all the blocks and joints together in a unitary struct-ure. Obviously, a chimney thus constructed will have great strength and endurance and be absolutely proof against escape of sparks or flame through the wall thereof. This would be true even if the parts were not firmly and closely cemented together on all lines, but when this has been done the structure is as close and durable as can be built. The said flanges E are shown as having a width equal to about one third the entire depth of the block, or to one of the recesses on opposite sides thereof, but they may be wider or narrower relatively and union members C would be built accordingly.

It will be noticed that each union or joint is equally free in both blocks originally, so that a given block can be set to one side twice the width of the space left by said union in any given recess, the union itself being moved its limit to one side in the block beneath in which it is seated and the block above can take up an equal space on the union, as shown in a portion of Fig. 2. Other portions of said figure show other arrangements of the parts, the lower sections not being drawn, nor the upper. The chimney might be cylindrical in shape iit' pre 'erred 'or any equivalent of the rectangular shape shown.

Terra-cotta or equivalent material may be used instead of' cement, and in some cases it might be deemed advantageous to have a lining or tube extending through one block into others at its ends, in which case the intermediate block would not have a flange.

What claim is l. In a chimney construction, the combination of a series of superposed hollow blocks each having an internal flange in the opening of the block and arranged substantially midway between the upper and lower edges of the block, of hollow union members of uniform cross section each adapted to fit between the internal flanges of the two adjacent blocks, said union members being of less cross section than the greatest opening of the hollow block.

2. In chimneys, the combination of a series of superposed hollow blocks the full size of the chimney in cross section and provided each with a flange about its middle inside having depth equal substantially to onethird the entire depth of the block and substantially doubling the thickness of the block, in combination with hollow union members occupying the spaces respectively between the flanges of adjacent blocks.

3. ln a chimney, the combination of a series of superposed hollow blocks provided each with a flange about its inside and middle, hollow union members engaging the flanges of related blocks and having walls otV substantially the saine thickness as the walls of the blocks above and below said flanges.

4f. A chimney constructed of a series of hollow blocks seated one directly upon the other and each block having a central intei-nal flange substantially one-third the depth of the block, in combination with a hollow union member extending equal distances into adjacent blocks and substantially equal in depth to the space between the flanges of said blocks respectively.

In testimony whereof l sign this specification in the presence of two witnesses.

JOHN. D. BARBER. n Witnesses R. B. MOSER, F. C. MUssUN. 

